SCHEMA Class_of_product_arm;
USE FROM
Class_arm;
-- ISO/TS 10303-1070
USE FROM
Product_version_arm;
-- ISO/TS 10303-1018
USE FROM
Product_view_definition_arm;
-- ISO/TS 10303-1019
ENTITY Class_of_product
SUBTYPE OF (Product_version, Class);
END_ENTITY;
END_SCHEMA; -- Class_of_product_arm